Bobbin-winding machine



Match 24. 1925. 1,531,033

' E. SCHWEIZER BOBBIN WINDING MACHINE Filed NOV- 2, 1924illllllilllliilll lilllllllllllllllllllll Patented Mar. 24, 1925.

UNITED STATES 1,531,033 PATENT OFFICE.

ERNEST SCHWEIZER, OI BASEL, SWITZERLAND, A SSIGNOB O'F ONE-HALF TO WIL-HELL! E. RUDIN, F BASEL, SWITZERLAND. r

BOBBIN-WINDING MACHINE.

Application filed November 24, 1924. Serial No. 751,877.

I citizen of Switzerland; and resident of Basel,

in the canton of Basel City'and State of Switzerland, have inventedcertain new and useful Improvements in Bobbin-Winding Machines; andIdo'hereby declare that the following is a full, clear, and exactdescription thereof.

This invention relates to bobbin winding machines and has for its objectthe provision of a bobbin winding machine for winding bobbins which areconical at both ends. by means of a reciprocating thread guide, whosemovement may be gradually diminished with theincreasing diameter of thebobbin. For this purpose, the driving movement of the thread guide istaken from an obliquely positioned rotating plate, formed as a cam, bymeans of an intermediate element controlled from the latter: thisintermediate element is adjustably disposed on a slide moving the threadguide in dependence on the bobbin guide, in such manner that withincreasing diameter of the bobbin, it is brought nearer and nearer totheaxis of rotation of the rotating plate, in order to cause the diminutionof the stroke of the thread guide.

With the above and other objects in view, which will appear as thedescription proreeds. the invention resides in the novel construction,combination and arrangement of parts substantially as hereinafterdescribed and more particularly defined bv the appended claims, it beingunderstood that such changes in the precise embodiment of the hereindisclosed invention may be made as come within the scope of the claims.

In the accompanying drawing is illustrated one complete example of thephysical embodiment of the present invention constructed according tothe best mode so far devised for the practical application of theprinciples thereof.

The drawing represents one form of execution of the object of theinvention, which is particularly adapted for the reeling of shuttlebobbins in ribbonweaving.

Figure l is a side elevation,

Figure 2 is a vertical cross section.

Figure 3 is a vertical longitudinal section.

Figure 4 is a plan of this example of execution.

The represented coil winding machine is arranged for the winding of twocoils by means of a commonreciprocating thread guide a. The two coilsare driven from two spindle shafts b which are rapidly rotated from alarge gear Wheel 0 by means of the tooth pinion d. The gear 0 is seatedon a shaft e together with a gear 7 which is driven from a drivingfriction gear drive It by means of a tooth pinion The rod 11 of thethread gulde a is rigidly connected at i with a slide 70. On it aredisposed two separate springs m between the slide is, and two stationaryide lugs Z.

On the shaft e is fastened an obliquely positioned rotating plate aformed as a cam, which is disposed'at a definite angle of inclination tothe axis of the shaft. Against this ate is supported a roller 0 which issea on an arm oofarodp acted on'by the spring and movable vertically inthe slide is.

Upon the rotation of the plate 41. the same acts on the spring actuatedrod in such manner that 1t reciproeates the s 'de k on the thread guidea in order to permit the thread to be wound on to the rotating bobbinspool in known manner.

Beneath each bobbin is arranged a guide roller r which is seated on alever t rotatably journaled at s, the lever being adjustably connectedwith a gudgeon to at u by means of a lever 11. journaled in a bearing m(Figure 2), whereby this gudgeon w is rigidly connected with the rod pby a head member 4.0.

With increasing thickness of the bobbin, the guide lever it graduallyswings more and more about a pivot point counterclockwise whereby thegudgeon w and with it the rod p are gradually moved more and moredownward crosswise to the direction of movement of the slide 70 by meansof the lever to so that the roller 0 more and more approaches the axisof rotation of the rotating plate, and thereby the movement stroke ofthe slide is under the action of the ide lever t in lmown no I I claim:

1. A machine for windin conical ended bobbins comprising means orrotating the bobbin, a rotary shaft having an obliquely positioned platethereon,\a thread guide for said bobbin, intermediate mechanismoperating said thread guide and having a portion contacting with saidplate, and a feeler for said bobbin for moving the contacting portion ofsaid intermediate mechanism towards the center of said rotary shaft assaid bobbin increases in diameter.

2. A'machine for winding bobbins conical at both ends, said machinecomprising a rotatin spindle for said bobbin, a feeler rollerparalleling said spindle and contacting with the bobbin, a pivoted leverhaving one end of said lever, an obliquely connected to said feelerroller, a cam follower operatively connected to the other end ositionedcam plate 'for moving said cam ollower, and a thread guide reclprocatedby said follower,

said cam follower being moved inwardly to wards'the center of said camplate as said bobbin increases in diameter.

In testimony that I claim' the foregoing I have hereunto set my hand atBasel, 1n the fanon of Basel City and State of Switzer- ERNESTSCHWEIZER.

Witnesses:

PETER PROBST, JULIA A. Dtms'r.

